{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xc54bbb0ccf422e3c66c9120fce31f9aa2596b016\"}",
    "nonce": "0xf3df9fc39365dbcb3c6df84df528e3dcdc70d2b16e2449fce26b806b2eefb600",
    "signature": "0xdae0ae00c4831a8e3e6a0f46610a8cd75870a0ec4841f9b305c860fbe87c64e6631135635150d5946461346d916cb6e496196cdecb43ea98e5747c173a01042e1c",
    "signer": "0xBc14c596aA16fcCc5564f40B0296d5a41eA68A11",
    "userId": "2167"
  }
}