{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319758166",
    "entityType": "User",
    "nonce": "0x51634e2d0402fafd536202062866607c16d1f8e2eb79349d4301af5b02ad540f",
    "signature": "0xe1f1b626528c4f55f193ce3907c29669c5abada0f98931ed1e6a436c8483d9d054f32d2b86189436439bd8b119dff71deb077e63bdc50c9ffa01257cfcc5dc021c",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}