{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x96deac9f0141d413438492cb1858eab465f45ff04db9e25a01025438f6381ce8",
    "signature": "0xd341e44e2b22e6202cda06107d32a8c9f4bdbd0a62cb7e50aeeddce435d1abcf4a70eaebd731b202758ccf1d7d8cc7b88480422dfcd49e9b75112e44683467431c",
    "signer": "0x0F0A5d21312dD5C2d4013D6E19057c2045C3f2A9",
    "userId": "560525085"
  }
}