{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355964",
    "entityType": "User",
    "nonce": "0x2af3586b3c5caa541b3316a46f8bf305f4d72dc0018c301097df6d286fe37472",
    "signature": "0x49884ca734aa23e7268bfc91ee86d2ba0af64381ead30447fe8c4a9547f7e9b70dde97c2700e6070f9091637236b2c06fe8b9e5fa78ca451e857874c58577cac1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}