{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e860040a1515ad261ba446f33db5114294696afcb32421dbd4a49672add2737",
    "signature": "0xb549b9dd80cc6ad9aa373dc4af82c29a2401717b215ea1c285c9d13888df2aab0ffdec7dd5894cb5a61dea6386337da59acfdb119219a6f9661dc1ab833a16ec1c",
    "signer": "0x0041F869e1DeCE59637EF689D1E5ed81E7033F9e",
    "userId": "105521373"
  }
}