SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07745c2e61da877c7ec7b52b0099d148014740b82890578900b8e1464033eb57' 
  AND token = 'eCsgqoBRYoGLG+cnGr46lxyE2xEpmW2iOiBqkNm599g=' 
  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