Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e860decd00ac2a7296de9ed30492eee1bfd12e1ae720ea75bdc1dfdf66d881c' 
  AND token = '5l/PFrhIXe9VGoB1u3I9B+RoJLnhIkLpFm/j5W8+J+c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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