INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51f620fcdf8627a85382c6f0d2a68438e4b7ea383933ac432d109036bb940a23', 
    'r1lSBYPeUt1y4z1qjCCW2hb9QWoijwBJIyYO3j50bsg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00023

Result

int(1)