INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '15e5590800b051cd3c6ecba217950c26217a82d6e32be4888f5fa70210713661', 
    '2QIKmtEc1eLTzgvZe1Zr+/vYrlnLW9V8hmzL638H0So=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00041

Result

int(1)