{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x6003d36806a35580af94893c8863c021e14806f03bae7a6cdac4a5d070665207",
    "signature": "0xb6acc70e0880a0d6fc8be68232c2abe0e3ba4ca1a87333b0ecbb3d69a3f63049796fbc9d8824efc8ce770082b976ab04779991d6caf90b3de183abff0d063c7f1c",
    "signer": "0x8D545621964305f07a95300c5f545281Ce3Efc25",
    "userId": "165066159"
  }
}