{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xb79af1ed5a43193227a9a28100789696af6e7f5e03c9c4b591b81b03829e5db9",
    "signature": "0x8a2eea449c6f66f3b3bb96006e7246f3f95ea5cf0f15cd31946c88f031cc7c2564cba78079c8aab1c0a568769fe3b4731c0378c9625e48929c151903c6115e741b",
    "signer": "0x66914e8b12fdd810276Bc55AF3341954032a5424",
    "userId": "964734661"
  }
}