{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x34de96c56329c0e136e90c520b929f6e6206385964153e9b87ebe8388b895aec",
    "signature": "0x865636a391541c8a4a468a3d4ecbba12cfa97329c287706814afb995e74807c43ae5d0bba7633089e6933df921ff11b33414c9a14f389b90116b7050a85a62791c",
    "signer": "0x1c22A301C246365452bB56917A718D7097571A8d",
    "userId": "757866412"
  }
}