Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eca76b050df358794d8bda244de8c1e6b5a404ec7a8a045f2d6109c736b13e02' 
  AND token = 'JaW7jC2B5cts53RGMK9ehdrozGxTlK6GA25NQDHIBTE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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