Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '037852b21bfdf65442f8439cc63409428c50b6eefad3fef74ecab940f0834a0f' 
  AND token = 'zOtU3jkys4dwj0iWdYoMdm6gHm9PUsggQTKGkrxAb3g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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