{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x4812a7b147145d546a0b6d4918644ba15ec986cf4cabcf6ddd38ed17722beb97",
    "signature": "0x603b9eae9eef51d8e3b5d842639ecc8e199632c242094b3d3e68f51865a894593bef35204a89f173d2d1b02a9de40051326241993d72b6255674e44680d576471c",
    "signer": "0x6bFdA7F67147F3B5a1029c91BF1574cC86EC9e5F",
    "userId": "696810334"
  }
}