Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8ba1fe5798ea9b52df6ec137b07518e9c18fa001606e98c057d2e96e84892980' 
  AND token = 'RBVZueosnvQ/4Znihvsy02B0ujhae3I7NL20TcN6hic=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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