SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1509aa8078f0e0580b7121ae20b8edec9ffd87da3eb413b4d71bad9aa6bc5a6b' 
  AND token = 'Pz7ioGqHwA0CUkix6qv9VwV/75Tu5xSBzCXl46UAdVs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

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