{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xad058b157c9289a60111d7197ceb4ffc76bef7cbc7c7eccf6702db1a6e852eee",
    "signature": "0x781cc8000b6b55953d6aa85088fc79a0bb1e369967ed6e20db719ccccb7c14e559993c9c3596cd185885b7756faec18739c98ab1f487bdef698f9ff1a8278a741c",
    "signer": "0xdb48A9C51EE69ef3626d4E292FF64d67f54D4877",
    "userId": "144844332"
  }
}