{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x5d5c2414558a7b00f751947bbb4572a6c20762c18a814dc20c6e4b75b85b501f",
    "signature": "0x906f292599320c09096180986f4617ca405f850a1929b5700190c7af3407f2b77dcef217715e40b0809f3293a228a388a397e1882239871eda827fd0644fd6e61c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}