{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xa11f691cc692a3f2b7be203ee6881d6934ef1c4ec3d33a5ad905385e12688ec2",
    "signature": "0xa0bcce9d8e710c9f17287395a1cfc3bd06d7ca66fddfaf07a22dfcda294b1d9e5b4e1939bdac863b458df2184bd8da0bf61e44a47f73b8bfe40281fd0f63d86b1c",
    "signer": "0x81c8AA76c29E445c135597092DCCEC0873390C95",
    "userId": "672982126"
  }
}