Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '43220cd19620f0ec94b0c7323d7dc0c290dd24afa3a2064dd49e8923402057d9' 
  AND token = 'pBmyuItsdJh66tdFiazVJlhOtaiN89xWp6OiAOk/AcU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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