{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72490",
    "entityType": "User",
    "nonce": "0x3daefcfe5658b475418a9453857f07ebe4e25ea2a6b9b56bfc3be2bb6ac66a46",
    "signature": "0x08a57ba2576ac331320a55b2548b5189699eee9a63cf6d1edd44c2f53b9dff73544d9744ed0e3b6c234fec8823270eef691933be89d0249c052882106e3acefe1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}