INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '257bbc60494134a9f3808a2dc04b3d576204b3c4edee58b59aafacdebae2273c', 
    'cVx2kiMqN5xF1pKSSOY0t0it2UGb/7BTalP2KrIE1GU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)