{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99225",
    "entityType": "User",
    "nonce": "0xab8bfebe699f2a3d19f1aeeaaa84352e1f70ef1724e0ac6623175bee0145e629",
    "signature": "0xf1cd16d922689d40943d6c990762f0952b3df0c56b230b455197ad2721eac33b0518923694c07de4de64788cc4352eb9deb0d02747ee70ad1dc0bea2a432ebaa1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}