{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89",
    "entityType": "User",
    "nonce": "0xe2de54bf33bd84f8c6eb2d8617984b642c8ddead08071fd04cd134f212d9d81e",
    "signature": "0xefa88606333525e0dbd81f8b3e3c3815a38a76a380eb5636988b15913085781e0bf938e27ffee947a074f29adc1de474cddafe33fcd094d1e6487edfb7acca2d1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}