{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0xd3a7c290731813c2531dd58a03429efc25f99835beb104c58cadb48a67cf1141",
    "signature": "0x20ea6a26f52de743204ddbc6466689127e5a5148fc6c4cef9c7a4639a07be6f8287b8257fd47b29d7b1f6f6405c2b09ec7add2a540da03c1dff9dc4a78e858ce1c",
    "signer": "0xE3CdfAFd2999c1C06c139E932b0515a9F0B07382",
    "userId": "29797210"
  }
}