INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '721d0b9a55290e08fa7fef27ef9a5b2eb4e61598a7204b50703fc22685b5ab27', 
    'RkcJZCAyrT5HGgIHfFEvRcTcoA1ELoZi6yJmYlgsp+E=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)