{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xd8620222eb323460c330b30464ba1aff6c24858a8f13685e1f3d22291d3bcf75",
    "signature": "0x9dd5018023e3aeca09d96e0bed9a410b2a963f68c31c469a91701300e40c60ce07879c5d6234066cb04793f0bde59934394fb15baacce1dd038e6ac83fc87a641b",
    "signer": "0x5C3254E9a3c76af3AB3686023e6aAC607E43b342",
    "userId": "197450592"
  }
}