INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '83838a5494f603ce3dc1f860edf28f3c5fb03a43625a80edfe8fdbe097433984', 
    'PjNis/hM0VkPFtBoM1GkGaDnNY4KIccaHy8Nd2Z9O1c=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00018

Result

int(1)