{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39472",
    "entityType": "User",
    "nonce": "0xc76f69160860b1cd08d52fae2b641051387972380ef2cc9c96ce5f88a0271d3f",
    "signature": "0xccbd82752c0f6b964c9f316e4487f1d62cca029894aabd5f989fa9c9be4b69d8567e229b4292524749b17f126d00569fbaba3e2080cde4c34c6a868d248e57981c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}