{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xdf01489bdc63868aaa4a45a696e503574b122551\"}",
    "nonce": "0xa086ecf78806f8df249230c9c8bc4183298fe4291f0fcadf5d9d3158b2efaf5e",
    "signature": "0x0a716923b9a41476b7860a3169e48438c5e3ad1481350249bf99ba35259f5931450bcd3d6d24860456b5cc8e07cfb987eb56f23cbcd53d75f6125788e41eccda1b",
    "signer": "0x188F517A3022bBC12ac535654eE4503aCB41D658",
    "userId": "32192450"
  }
}