Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '19d9a1a9a8de19ff9bb8ceaa2b78f309e1f5de21ae77b4c0dd8b2d779d08fcdf' 
  AND token = 'H9Yq85fnmHUGA9po4K6O8uAml7YQUPtzGGTKa5v8KRU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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