SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06eef7bce0a3e4aed902f4e1b3078ad412ae34115e69be9b9f96bf1d72106a4e' 
  AND token = 'EGxJCKB4xHNOPA/Z0LEXa/QxG4I55Gq75mOa02LRQN4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

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