INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '501bf745fba1e358e5d3ee2b66e0796e1bd4424302093212d3dc0a30d0491558', 
    'dhPfgWScXq7t8wTu3gp/ThYnbs9B7dwsoDEhYBHaqWc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00025

Result

int(1)