INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'e21116971c4ed9b2581fd653e67a49044e8c3d368cc3b50f546cef6e34d5a4d5', 
    'I1RjPGfJzuRRbVBrn8M0qbciYAI8cT1ibUyy0MHTTsg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)