INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '5203024e35d41ef8d81b9a2ed0520c8b03b6508b7fb519bd93d9fbee5d1943ae', 
    'Nc9ICprFvD34a7vyOanPf4p7fAII3Aw9/sShajKCdSs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)