{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0xd1791fc97186b249af3733dac3291072e89c58ae37faa110161473be26612b21",
    "signature": "0x3ab475cfe9a3f30ebe0f035cca882f4ce6c676f99414c78c5dff435801b0877516a4f07ee935819d8087e6e53caf9bb830cce567ee23273524ebf841c8901f941c",
    "signer": "0x607C0B504B1190F4Fa45D4712D4449C62F7224E7",
    "userId": "870305968"
  }
}