{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x52d7be84f0c43d84f2b9a3a886deaa9d3a5fc09126d89f73d4e97957b78f9702",
    "signature": "0x62e1ca06c2933438446ba8c334767eb3a3a9d0c4dec53ec36eb622ed89aede384ea272df5c692fd1f6e0baa16726037442bc5922f4b856f1ecea75f9c21512f51b",
    "signer": "0xDa13a6A1dA92472EAa96BBE0391B9c49F8639b27",
    "userId": "614784509"
  }
}