{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xc037ce34cb12a8bce5e545700164b443c1a9000b\"}",
    "nonce": "0x4bd541b03b2dd89febfb33581e327081b527257cbf65884feb24f11a10b062a6",
    "signature": "0x782dc5310e52284c54f9bbfe61cf7c67feeaabf08c01fa659144ee754da6a3cf27047962eb5fcf55ba2ebe8e23fbca4ecfeeee284d024f07ebdcc0384b43dfe51b",
    "signer": "0xa8a656578194b14b851Ab0d4a74272Ff373CbF6B",
    "userId": "1512820"
  }
}