{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x8c0528d0ca54fa9034b85d89f9ba4c1055e3e2dc602dcfb199d1d96503b57f8a",
    "signature": "0x71aeaf884ecb40667293e89fd6c9133362faa0d79c5da3cda20f9ba58f895f883ab19ba1fdb193017090280350e7a42e5c5ce9220fbe9f15e0bb253b9e19760f1b",
    "signer": "0x6c1C8d036b3c0119e31Edb58B17D120E6e91C833",
    "userId": "206524150"
  }
}