{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd28108335fa346b881dace2dc303200845d1364778c3db952e903b99b69fe448",
    "signature": "0xea3103391a77c0a1b09a363051e363cf0e06def32653c394fd47ae7d029b80234682688d59977b1718b9e99726d6da9df50a4b2cd6b0ccb43e7ff4d9ef9907c91b",
    "signer": "0xCC8D6F860a291BBE1188222aB5130b9A8baA028B",
    "userId": "771439430"
  }
}