INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'cb1543dfb6aba64c1529c4011d00e4282487f4b359b28e7e8551ee2009bcc443', 
    'm8RKbPt1GtvXw0Z0SXUFJA/Elifabqq5XNFrnrdB5Hg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)