{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335904",
    "entityType": "User",
    "nonce": "0x466b58d7a8f9bfd851132f006e1ed87a4e9d68f54ed73b12a12d170ef01970d6",
    "signature": "0xa1506bbc5c63e4a746673406ce37aceb50f84bd3c6f8fe7bef76e1aa121eaabc29e08fa1fcd4daf38781686c0b55b338e547f0b0e455ec9ce538d987c7c4c0961c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}