INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '50a53799ca765df6ed7d51f902b313b08fe925c91c30657f0619e9121efc935e', 
    'mHm+a312S/4vHVmEy9r9ef0oLud8KcjT4O0IV3GaenM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)