INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '91cb3d77d2f77c6157a135ded5e4b4eb46bd4a34256224b706a7a5b73c329da9', 
    '16O2Bn8GYpSbTc3DTEcajOLR9GMF6Yg6O+ry90jwXVY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00026

Result

int(1)