{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699855727",
    "entityType": "User",
    "nonce": "0x68bf08edadf8b4f4a6b55d1fbab0a61f4a0edf3c2319c474bb79ebc7849dba1c",
    "signature": "0xbe70965b14680b594ee94dbf321d26e2583ea5d74dc3c1017f9c711cd197240540c45f9141a1d4fcb936e0d869b60dc922e20ba79b7d20842f7ce005046387821c",
    "signer": "0xd24c54f5bbB8d2d7B36CaF97A27c265FF8C7f77b",
    "userId": "240030887"
  }
}