INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b51f3e372a29d91c9a8f18695d1feb88d7057aa21037fdd04c92991a0017e202', 
    'XUuss/PejVnlETM1g+WckuI1oJtm5WOKsriR+3uh/z0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)