{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89625",
    "entityType": "User",
    "nonce": "0x7f7d6c088893e4ac47789b57d6b91ceb85b9e5127883436a2eaa4df66107c10b",
    "signature": "0x678c61b117edd861c60f373dfaf70eb579c93fdc226134a9661f69444d452c4373949e29909fffeefae6154c5c8eebb223452ebb018a3e0e54ac66ee9722ab0f1b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}