{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67222",
    "entityType": "User",
    "nonce": "0x41ea0ecb3a34ca11590dbb1c011adc491301730b603c7f83c5f90b951c186b20",
    "signature": "0xab90566c835c3fafdd9e9cb7d2a423c54f640ede5a2013989c37e98cb0af69005f18de949f8531a8b581fcef2cc91bc4733e7e3496de2b568f2deedefeddeca31b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}