{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0x372769079c086f9310c6fd74e7b20cdeb745bc79c87916dc42ac2b269fe99f18",
    "signature": "0x16df99a3e9f8b0e43763f5ca690f382a9621b4ec04e88e1fca7aaf81f065029b1a59b41e4a3ca36527331c5e421b59a72e4d04d54ed5d1ed47f991c9857d013a1b",
    "signer": "0xca9222f1aedE81bB652753be5E233B18473E61E5",
    "userId": "9780"
  }
}