{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5ec04414a2d115083cb263040b5eec6c42ec2b4ee330f04d29605d3ff6e1e6d9",
    "signature": "0x40c6dcdeeaa2e622879e38d8d3272bca98da3dd6b3edcc8eb8f80cc40b290e4709324eef059170244822fcebbba9a848e4149f882132fd3331c543ec4ef3f2df1c",
    "signer": "0x8f4CD6f8125480f667beA2F67A6545AEF5029883",
    "userId": "980573804"
  }
}