{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x966ae4e7ae7ecac9f976b68220bddefa0e210e94d9f25eeb7a0f96b8ed3d55db",
    "signature": "0xa1b80c7d3778cf72cdd022dd5f4c615895b63bcd378d6e2fb821ea8e383e40634ac35ff76b4f43b7495d403416d4821239d0a8461e44ae07c1dddac8921d3a4a1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}