{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xdb6fbabfd0832d708357a683cfd93b9b3b36ef20\"}",
    "nonce": "0xcf7a4bc64d4c305152509da9484640dc38526b6eed5fd3dbdc24f192a59e2eec",
    "signature": "0x68b7eec00140c19ae8bc368fe44358405602760a1e7dc6d0aee8769204d4096c7572a6abb1fc9f90c1193f43be3cc2947ff260b4cf813015c35bc26d327e73341b",
    "signer": "0x369b8d306580C4859bf41A1845C439C006247c5A",
    "userId": "106716"
  }
}