INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a94e4f0c65649e60da99bb739eef11e8e19269484848c7b8b7907f48c4e3980c', 
    'mxBlY1GEdMzHpTr5E1/qdRmOSt1CphMihGRuDUAcQ4U=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)