{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102143",
    "entityType": "User",
    "nonce": "0x79911573a5f759e25387ef4b431028350a5ca3afbb57acec059569532c803801",
    "signature": "0x36dcae44859ce11a07405f2b91301ecd79b03e75bccc72676144db1408cc34060048fe88e0a83b99a9f9a7b7c639929b761ffc5074261095f80289ab9ccf535f1c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}