{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7631dd2bf2f6d541999733398565a7bb138b05b2ef03075e2c831f3d58b2629",
    "signature": "0x46753ad7b5ce291d2e1eb3f27a9490d863a2f54a34e923b3c4df47d2a28a7fb15bab7ae32213ba48a765fc42873de6391b61b05aa00f89ced4541a15627e0cc91c",
    "signer": "0xA00F16728A725D494Bf9fA7b5f716521A394C417",
    "userId": "727652198"
  }
}