INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '48b40ce8a0f70b96def3bde9f401f065403e5e3a356f1d2705ffee1cfd3e347d', 
    '4QzyCFeb51EhvzE05MOcbnZFh8cIkVsjnVd//a6JGcM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)