{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979252490",
    "entityType": "User",
    "nonce": "0x23f82594d107aac773cfafe38cd75c529543c6c491e01a04ad244ae7264e1b01",
    "signature": "0x4af2d44211cc3e2ef1308d1df69429a3693c73ae71ad0bb30fb8089928af000a57d2bcb608f78fe1c7f968b1238c696d2837ced591df7775cdf8d4e80d850f661c",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}