{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334016",
    "entityType": "User",
    "nonce": "0x8a5443ecdba4311cc449832fb74207f1e713bd7fe47b8ff8d5978cf5fd258bb4",
    "signature": "0xcbe84d0bd1143d3128b290b4d08820d49b95b12b4fa163d8589e2d684f868e45118c202c28f56917eaa1cf1410a7ef0e0c25709834b496d9a2487d70eb04981c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}