INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'e921e804bce644e68604bd38551ac2f042f4aee9e6abe4d4e2bfd92d1b06e7b6', 
    'mDcEzWcGdVi3//RaYOWD6CgqtxpBBBhClitm0fiDBcc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00031

Result

int(1)