INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '252ad90dee1a85b54e7afc6e11b67bd47a3dc54a50883e2b23512872c11f4b38', 
    'WBOtG8OflGpJvp/HPrQuLlhgYe8QjXOhRjsJn7FunWQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)