INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51d2ceea3e9324e6ce2e4f6c64c48b1a06a6f17031e936f8db2b279c2a713953', 
    'vgvTPjC2x/3a7qImAhAauign7BPi57an36vKH/Kfhp0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)