{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "472301667",
    "entityType": "User",
    "nonce": "0x91b90ed1e85e177521e10e79879e70bf747cd43e4d7401fe889990cb58e91639",
    "signature": "0xb581181dca7f567f743bd7fd4ec305acbff7a9d8c2fc604f233ba8d3682f5b36520d275340008dedf4366c248909fdc79242441f0cf3efe1c5345047607639041c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}