{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x38284b07706a0d8f3e31f8753bc933b467fcc15e\"}",
    "nonce": "0xd8dfa9f0262533ec3c291adb12dbafd2d5fb167297c3b8d7c8b24e05bb48762e",
    "signature": "0xbbd330fe9fe7f7a5aecf7d5d15e1666f04ecaa0a374b4f3096ae29b4b00447e361dd24c3401e263216d3af89dfadd4739248c6ef6661619d5896cccd8f8cf4381c",
    "signer": "0xa9429e29EFAf27368D8085F64e9F45373ED583bB",
    "userId": "627750925"
  }
}