INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '7a68d667a9051bb96e287faed9e70392a501442ae611bd99233a2d59d834cb9f', 
    'S2k+GBN0XxtcfoRAH4q2VAS5cQihI8hgkXfC57I1lng=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)