INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51961a7626d9b9716dee0016c47c45a2b0c6faf98ce8e3d851f51ae3073a0d98', 
    '+Ejl4vh6TQnoR/oie2o9calQ6OipSQPGaf6khL9CtCk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)