{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xc4feef477cfa6fe6e76c04eeaa8cf95bbcfdefef2eefd7311de4c933f09c2d44",
    "signature": "0x406cf508ef73fae4ab826c0d25db8c1f6d97156ca47af6fff752c48aa956c055425e8c4ce8408bedcdea1a81039f4cec2295710271a1b7187cdb602deabc20e61c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}