{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152826",
    "entityType": "User",
    "nonce": "0x65e6bbb57de17f1f9515377dceff190e8491d684cf96d2df09aa49368302e120",
    "signature": "0x23eeba01b923779f7e3e4a45747b0e6d8a51bf45d9eacbaf7d968c76bc415c1341535137f838f58bc5e8e7f9885eb24463d6d20852245f24d74d5e24eafa89061c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}