{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1036471",
    "entityType": "User",
    "nonce": "0xff4143e33ad214236a422f719dd120a758e9c2ea1b6e1ba780307ed8d849bff9",
    "signature": "0x1a75ef92e220218c79f152bab979056eea838a2efb8a58ecc8bd52d7026645d177a2c919cd6275670a321bddebc7aa8355c059699e64bed3fce6f44c7a9f4edd1c",
    "signer": "0x9689e3d5AB8104ba8f965A6a5b4945644cA20FF7",
    "userId": "275143328"
  }
}