{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "679253289",
    "entityType": "User",
    "nonce": "0xb25cacb92a9dcdf92e643109aed2886c74cf1a76a2894fbd9c9f179208ca02bc",
    "signature": "0xe0751efbfbb00c405a478a74d5c598e0f673ff1453f1edfc3c42e3980023b89c15025433fe0c98487428374220e609faa3b4910c0937961c534a0d66242fca7c1c",
    "signer": "0x93d21E62b3f482c92B5884444ECDf17844f46ED5",
    "userId": "202695677"
  }
}