INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51e19c418f9169b5f84f380db8c03de61bf0a491f2710c29980452539241246b', 
    'Q2RmOV26JLmQRPPt3AwV85XgOPciVhQ1U1IvddbOnSE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)