{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x63830a9c211a707e1f64ce32d31e18695335b816bbf59a7ba40885cda0550910",
    "signature": "0x7d7aabb583606f13f9b5469f6a5a06ef845062b8ae03c56f60bbf8b035261d6c0cc8bd96d2aa0ab5ed3df263147fc8f383cdcac8d3fc279a930575f61cfcb2d51b",
    "signer": "0x9dC784115C8E9FD433F0B1fFEC714CbB7Da982Bd",
    "userId": "629960430"
  }
}