Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '522551ed9704565a3c5d83cfe7420e285b5b4789d2649157ecf8c6a13a1772a4' 
  AND token = 'HKjwotIMPeK54VAp66bxcrvxc4z2VWykJQ2kSqhrkV8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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