{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1a078bd24f47b16ca1dc97612598c8051a85c49770839d0bb3f0a6bad718dbc",
    "signature": "0x99e1bcd8b563c0a822db65d69cfba5b5a903ce8efaf9eab6c55a8920f16c5e710a2dda5b02a1bff7c05226e94a0e0e354b8c07bc340c56b6182976a12094835b1c",
    "signer": "0xC9ec5C45BF73D5aD99A2afEEb095b7A9a812c812",
    "userId": "118384482"
  }
}