{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x34d3ef7ce1ac1b12d730db77db27366d30eab85ec6cf03a4247d88da8d5664fb",
    "signature": "0x0580344652c2c947875bb96728e83aec2e2ca97b63009285c7f94ab307ecfa00630c504da21d0f4b0d37e012d1a4d7270d939da28c85b39d043d1cfcebb2edd51c",
    "signer": "0x635bb289EEAfFFd40aE7c8618782950D7a8909BA",
    "userId": "49228418"
  }
}