{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x99921a41bae8c2a2d50f917de0ca5c22e74226b45c651787dca3ccf8f68968f6",
    "signature": "0xefad42f811c29e451423b60d155b78adbe3c278c64e52558abe3130cfd54adc16ee6ee7612737a48a0830536153cbd2ef08448fb81348ba8bb0281f0712eaaf71b",
    "signer": "0xb46fcacf7dA85016bc0c5277cc7a5aD1eB1B2015",
    "userId": "445697027"
  }
}