INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b3c4ce1582afeefc820fbc03afb36efe51a7037b354bd73d094b00572a05843e', 
    'TnjWbZAThYdqMmozebSBVjDmD2zGyCMJQEFpKxTe8KM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00025

Result

int(1)