{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "719004021",
    "entityType": "User",
    "nonce": "0x088533ddb1f9c4c2aba0d5a7ac4961e9e778500ace6a67fc2d9cb9956ce89611",
    "signature": "0x4c454410e77febb76e8d06236c96f9d5a6eb2e2bf073abf7dbc5cf7f705fe0225068832f59a62df46fa18c39daf6da28fc8a405d246a40ef3bdb047e9367a0d41c",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}