{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xc73df8e59edfce55e9819f51ffd976d3ad618d451f64c5bf06f903769f34105c",
    "signature": "0x309f7c93b3e2cd41ad9eea59b1538d1a376cb58f546a5f76221888f49f5e4232314800a59ba01724c6f4c3d8e158c7fb9052b11f9aa6208b3ad1730ddf6868fe1c",
    "signer": "0xBc73B2c8Eb1621563883309E489d827b379818E4",
    "userId": "172177951"
  }
}