INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '15b5b0031d5980488302271fda3687d1a86f04cc669c87e7999420579b787511', 
    'WB5IpTBr41jJw/WqFrESPqUGKjoFKjhSL0jHR/YwmCI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)