{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0xd76f52fd02b73eefe30aa5eb97c9b538236916e0b7dbfb54c1fab2ee5a14fe14",
    "signature": "0x0639278c55765ed8d8a4b02426d5a023bc833d8e6bbc0b251b2ac58f88daf6cc2bf45861c1b924591037be04df9baca61bbf4e02f564b9f17a1cb1e2111949d41b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}