{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x8756248c33335ef5ca4e8123e160f91f1bff821603d9ab2f8196be40966477b9",
    "signature": "0x759ed66f40a57205c0e26225bbeffdc5d07b315c981e9558e9c5c796b08023a5062f873fb75f1164d86f4d4773415dcc64559601290fab3ae1a7361d17c025821b",
    "signer": "0x55631ED6EcB9A2367c70A9dc9C9FF8322E37E73B",
    "userId": "391907593"
  }
}