{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xf6d2d3968152b16d14196c73b1fe0f0fe37d3817\"}",
    "nonce": "0x69999d2177861d7bff4d9393c8957df06ceb6cffdc84f124e043059afd7993c7",
    "signature": "0x9fdc3f67133f2af3efc520e9459bda698bc077e72c21c91e4af35d4a61536db077602cf46ce0eed1fc4cb5f1024db74a12cae4b0cc81775b8d055ba4bfbdfff81b",
    "signer": "0x54BF9B0EaE7DC0d6695ede587b0f13d57e94848f",
    "userId": "96649040"
  }
}