{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcba68cf99429665161713eb6c55d9be6bc85fde06a07c3bf014ef19da8daca25",
    "signature": "0x5fe678ddb4505b2819bdd00a95ea3b3ee7e32f25a18faed0a35d97fd244665f559cde4116373d9f48af8aa4fffc10a342932518bdef73c5bd00925e1381e5a831c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}