SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd01e3c0b69125151b63e4a5366636a9e530343a529f1d8921fcd74526558147b' 
  AND token = 'niqzvAjY7vRRRAQ55WNsBKEjPjliiX4meRvSrRxk/nM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE Impossible WHERE noticed after reading const tables