{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xc037ce34cb12a8bce5e545700164b443c1a9000b\"}",
    "nonce": "0xa74324c4c56ea80a9ae3c1e047d57de7b10e13ded50723e3573f041d5e1ed340",
    "signature": "0xa9f40f38028ed0bc3745e9729809316dc04127d16e11efba05f192824c0f8088794dfb50dd6b72ac98880b8da023930406b36581d2778120bb2c5a13e42b6c431b",
    "signer": "0x3df67dfC4e44eb904F21415Ff9d1c71d584c33ad",
    "userId": "180188"
  }
}