Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7b5363cd78c4c56cd1f16d426d75396f02d93853e3901594fddeecebcc907ee8' 
  AND token = 'VT9nST0NTrMm6WUwdVItNdN8JAn2eIpUAweti3Mcq00=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}