{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44577",
    "entityType": "User",
    "nonce": "0x2c13cb40fb97ac4903e0e996dba85f772f7f05456f3d954e94ec0a30b4021f9e",
    "signature": "0xd7c6caa6d8f6bbdc66886dc62baad19f424dc698cf307855c041e106f9c0930a22322ec1c16adf3a20d0061406d8414e7989ade2c1144a8ebe1ed01f9a7a483f1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}