{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3460605",
    "entityType": "User",
    "nonce": "0xe141b79c7a311305c121c777d9d28270beb3c080e5cd2da2ea31f60f29127ba3",
    "signature": "0x267dde778be6019451a65a9acb113818478adc22954c5d8149d9004c1f66f2d45d80c0917a25ed602749f5b45845e6e93bd86e8a3bfbba33f8e40cd6ef73f8241c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}