{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x7dc7674d4bfd26b82a466f5241ba5500d25e8569c0b13a57d39bf04049c203e1",
    "signature": "0x66401566705be7a17de88d45ba3cf39bb33c7d73f0f30849910a6e046578a6094b0c48f45f12a6573f5960ebde3f8edc8004eb891167b43c22a861ea43151fa01b",
    "signer": "0xE51EF0CDBB6Be04222D902916F2b0f67DBAb6616",
    "userId": "1334982"
  }
}