{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x14aeb7cba62d8e5a9f67a9a3450c6d5cfd1893f631e3ecc4eeb7e8c0b09d279c",
    "signature": "0xcf38f5cb83b85cb298e3f689e554daf3414dfb85dd3708960e9f4c30bf928d694d3857ad2802b250131402b8fa24c8f023d4f0c620ba9deb15760238c93db55a1c",
    "signer": "0x3e59402b0B65F262Fc89DeF98Fd258e67029A0fa",
    "userId": "128320715"
  }
}