{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x7c202529423465f4457ed42b02efa0bbf091f48f\"}",
    "nonce": "0xe6f29f7faa12ee140eb1440d2633ba8a2576f1b1029cd00383f12acfd9e3fa98",
    "signature": "0xcf216d44d501c3b554ec53b716704bca1fa661812a1f7e0d103062b2afd181055331dcbef3e9d43607e3cedd1d000b1ce5661e48f0a03751b75a5cf867c3df401c",
    "signer": "0x124e6e1EC1d54678f18f1d687A479411cb2181ba",
    "userId": "452258646"
  }
}