{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "784138",
    "entityType": "User",
    "nonce": "0x256505996021f6d5a6029f76fd385995040492917e6cd97d51cf7349d1223855",
    "signature": "0xa962001cd79eefc837288a085bcd220b1ac4ed248d4680829d966677fdbb09316ad09a1a4a254a203aa262dbbf946212dd798afa29f139d21357283156c7beb01c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}