INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21b436697f98a93fa3012f5519c0dd54e9a81421a67def58c0510939f5a33276', 
    'W+AcOqkW6LS0LPECv8qNpPEiobHadMEUv74BsOtbo/c=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00040

Result

int(1)