{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x15c09392b3d192e71ee5b8c7648fcf318fe1bd7e\"}",
    "nonce": "0xd58d110d69b89be3d007fede06baa49057153b0499ad725cd6d55c0b5d0d2473",
    "signature": "0xff7f6b64026dff4860194b04ccb41b6e9e9459ca6e019b79f911bc9d0b20439479953d4edbf891c4ee7488efbd2a6f5141676d74dcc976681027f09cd36a04f91c",
    "signer": "0xe1002Eb10C879A84b56ba38888C0FF7cF6E33602",
    "userId": "91113"
  }
}