Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4668846d9092f84a93e8ce1ce9d64ea458ba6eb9bcadd4cbb345be48c853ed73' 
  AND token = '8Gx75zwgTQiJlRszdbOTPnipilrRsaiGNuvIUcTu8sY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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