Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ecde78b91eb9a14a27639e480137b5ff721bbefa0458604a738a03a498ab804c' 
  AND token = 'ry8YSO9/DffBTHZ4NOUhOFGR7ZXJ6peV2At24gcBrIM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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