INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '15c8162a50b547f73f1f562ffffdb65543a6cdfcdb4a1a0af0aa0905171d98c8', 
    'mK5jSKejTdC/8CU/3nkoc375uISDKRCSY2OS3kVSnRw=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)