{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xfd9804b369d1d5c7f03aca625a3a9181af51d8844cae92061457a7d59e4f4d0c",
    "signature": "0x018efdf2f73435c841ab4d9dd5f93e5c6c68007e9ffc73d07daf93a0fec83ff87f4451ead8fe112272427b579a10bb0d71bc182c0be60c6f85ee9860800c6b041c",
    "signer": "0x40C640AB76E3Cb675A18001B1f03C702707D516A",
    "userId": "431851742"
  }
}