Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'daaffb21d42cf87d65caf3d4de7ce74e9665a3bee104dee6f8259bf098eef396' 
  AND token = 'XcBEbJQtivukc+405FxBO0Q2VDPKw1yxoi2V2RQ0y1w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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