{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x73103d75722c458de3d76d862128d8b64a00bb2a3bb450143ecbd436c5b80059",
    "signature": "0x6191f981560f4776dac4f40c9f512952d97aeba6610cab1903d8ef16063101e43cddcfb76dd2c6f3ad4586dd4c61430445747255a4927688a737fe9e81bc633f1b",
    "signer": "0x26267F34E15Fa34cade76389C4f12DC4CA59eE34",
    "userId": "388980"
  }
}