expected_output

{ publicKey: 'B62qiy32p8kAKnny8ZFwoMhYpBppM1DWVCqAPBYNcXnsAHhnfAAuXgg',
  signature:
   { field:
      '26393275544831950408026742662950427846842308902199169146789849923161392179806',
     scalar:
      '28530962508461835801829592060779431956054746814505059654319465133050504973404' },
  payload:
   { to: 'B62qrcFstkpqXww1EkSGrqMCwCNho86kuqBd4FrAAUsPxNKdiPzAUsy',
     from: 'B62qiy32p8kAKnny8ZFwoMhYpBppM1DWVCqAPBYNcXnsAHhnfAAuXgg',
     fee: '3',
     amount: '42',
     nonce: '200',
     memo: '
this is a memo',
     validUntil: '10000' } }

payment signature only:
field = 26393275544831950408026742662950427846842308902199169146789849923161392179806
scalar = 28530962508461835801829592060779431956054746814505059654319465133050504973404

delegation signature only:
field = 2727884819800230558400948333270441950586346519340225630235520264308803741995
scalar = 23500918466637185993549545553206793735262796665028368103560490293516991913603