{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910895194",
    "entityType": "User",
    "nonce": "0xfa5a4dc7020bc39272706c2fb1e41b6c7781a09cb9f34b4d83e90de4d82a3e00",
    "signature": "0x42343e67fdcce83e1ddeb77f0d56d19c64f707531e610025cac9a8498451e2fd2be252bc84858499f131a88b1be0a4371e6dd7aa24aa3f267ad7b65ed6d26c341b",
    "signer": "0x010c3D5aF33aa5Cbd1589eCf8Ea0F116848D598c",
    "userId": "943632467"
  }
}