{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x09f628d20e1d032eac62f8a61874d0222a6222041b1dd67dba4a8b8b656598e1",
    "signature": "0xe177f687a2d746a74bb3d022bb07988b7171eddb1879afa27d83dc31d8b0188a7af0d64bda686c8474a502e5b6e794123f4310ca0e355fc324c2c83b461cdbe81b",
    "signer": "0x90FD14E5f569756111EE3AECbcE1AAb95c2A01da",
    "userId": "86867162"
  }
}