{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0xf250967ec1dafd6386010306f5db5a37c768e41213201840765abd81cbad7359",
    "signature": "0x23d3872528a2be4833f6df6593a7de6998a7367414148027daccf3a9b320f40e066b501f554cf8eb3cb3737a1abc1eafe456657632c17cd71afa069dce77cbd91b",
    "signer": "0xD6d4ef725f51ce20D8049A4A471133D14d775063",
    "userId": "995414989"
  }
}