{
  "manageEntity": {
    "action": "Create",
    "entityId": "603341162",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraanr7rs6cdquqvxzln4vob3yns3leg2nxlxk7jvsxcxowgegyzsia\",\"data\":{\"handle\":\"fanfan0521\",\"name\":\"fanfan0521\",\"wallet\":\"0x9fb87BA655735a09619737dd221c922Cc965a2eA\"}}",
    "nonce": "0x8a7dc9d94449eed5147a4f348013998f8adfc8632222040591d747dec7ea8f47",
    "signature": "0x1139b8bba744d9b691a92703f500c2d0bd5ca0d08a55790715ad0606543f419268e34ce7d96c2ceb3afe4e32eb3ce5e1bac8a62cb61fb5d6ffc5dce78abcca2e1b",
    "signer": "0x9fb87BA655735a09619737dd221c922Cc965a2eA",
    "userId": "603341162"
  }
}