INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21dde0541aac03e6182a4f6660998d782379c388242d3b42ba182eb9f5731e50', 
    '6TIqAhThwlzfMgqo9gdXNzY6rNnWXecyL+sOSJDDkCQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)