{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0xd0fe32b80100b30331b64af6f56f2d72ec0405fca0e4dcd8773d8daa1c2b5669",
    "signature": "0x3d048cbf6526f0ee7bd3e8e6894bc327649cd05d98da42a182a218fef8bb41784fab2dd5d6357328e8ac9b5235154a83eee8fd28b77a668da6957a7c79c0baff1c",
    "signer": "0xB9095923a07F044b400bf3CeE4b269790353935D",
    "userId": "230935100"
  }
}