{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "470535003",
    "entityType": "User",
    "nonce": "0x3eac3f4aa23825d453b76e02e8b6990834b95dd1c2623f99a49ee9fe79802e22",
    "signature": "0xd16735f503a210e710a4f55b86824e43ca6b26db1bd71858011ae073be91338664383c001c3198bc989e3e37ffc2c6eba443ccf2c9498a40b822677835ddc3291c",
    "signer": "0x874FC0A92A67F234518D57908dB5282444fb3571",
    "userId": "853740451"
  }
}