{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x97be19a87e1513e47aedf74cb7cd1c6ca0f55b64051a68401e98267cf082c01f",
    "signature": "0x57489f473506fb2b3d690b29206353ae1d6d05171007b5808072bea7b3ff5af000e1d9fc7fd57cff20cb2f2db98d01ee3229ce070e8cf3a1fafd35fde1bed6611c",
    "signer": "0x447503f17C771AF2cE8cd71c5D81c680e0FF58Ad",
    "userId": "552928222"
  }
}