INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '389b36c85dddd448fb64d0271b1ec9fb9a7d021d7616af6b5e9d0403cf76cf5d', 
    'NHl0bWPOH409dnBnIUcbKXXJembRWW5p2SGQqxNcxjY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00037

Result

int(1)