{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326088",
    "entityType": "User",
    "nonce": "0xc90d397bd74c3b1e031ffe199e48c1abe8ef3e28e7a64048d50bd80d7f47081a",
    "signature": "0xf38b2f238492765360c555c3709b2939317f50d70a826954dcef8064d1b040ec23c7d5d4a2f2098975b96b4f6387fea82549cf4c8284ae011194e507539a219d1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}