INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3b29198e8b84611e88114faf2412121efca18c9a9f13065f42f22e16e6fd15c4', 
    'UpxCdBUFHSAHIC+S5kJWkbjXwtsSeb65U+aC8O2RFkU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)