{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xedd5a226be324963144a9c54a3454a14f652612d3ecfcdd91489a6ab3f2c21c4",
    "signature": "0x6b7d4883a26384f6974ed072e70e8e62684ae1e5bff5d68fa66ee17ea044ba4b39f418040756e2ef55c725f4f5306b4af9b3874cee97e624562b9b5d284d210d1b",
    "signer": "0x43FB3FC9D8Ef17aD9D2f41250bc75809a3D035Da",
    "userId": "593031615"
  }
}