Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b6be81fd455366adc45e6056e7b4e2d646e519a7729d71bc38f21ce6a77e8b5d' 
  AND token = 'F7EPuvmD1lJb4jinOQhy3XxytuzykEtkZVZtwIVtAaA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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