{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0xe7e3a6d9846c01f1476f1da12be075607d2b66c3736d3b797cb2a8ae17c12261",
    "signature": "0x6b2a9d013092c14f2ac4481719794cbae31f4d0e63f987e4582ac40be997227635b9d6a58f7b19739fbace06891314743ef47344241bdb9c5c0b0f9c71360b191b",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}