{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1481230",
    "entityType": "User",
    "nonce": "0xd72c7557e3ac6a63a6deae696fcbb7a251dc62e0e15f7af0d30aa9ce7aafe75a",
    "signature": "0x25713f9e0bce64d58549c897cebadec43383719eca7d817877362966c2b3c23747ed55773d96c22fc22c0876ea7b038f561e0b19d01df307ed0b15cab59927641c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}