{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "36375",
    "entityType": "User",
    "nonce": "0x389e5e148cf4c6858b61fe79531ecf44b25a4c92670ec219f4f18d3f87961985",
    "signature": "0x642018ebc3a04d43e2f57c199ff16195a3dcee0483eb7bb61b214a5edb84e7de63387c2aaa550756683802c81745ad50d33525cd0aa222072f93dd91a5916eaf1c",
    "signer": "0x316933E449A0b429014E405447c447C9Bc472bE9",
    "userId": "451684863"
  }
}