{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x78a5e33a541c77caec346a78154bfb24c86fc2dd44c45e54b2a4f0e9750a69e1",
    "signature": "0xc93965b83d5a1ae6e3572dad4f61cca7d35f41eb5a89334df81156592bcbdd9846a06b1d556d35bcfaae8772d6a52907c61843b5d8f05ab99de01e3cce8c91621b",
    "signer": "0xF31aF75360F3969cbFb899dB9C3Cf65f428Da128",
    "userId": "942427898"
  }
}