{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194087",
    "entityType": "User",
    "nonce": "0x510813d87c77030d8be3d1345d97eb79b299d63ddc103592cf4c93a643423b7b",
    "signature": "0xd9192a7408575e9b193eb2b53885f9d86bf6914665800742265208c7bee1afc250894ff109bc8171252c5b1a84967aeac5da156d001056a9cd105a115582a80c1b",
    "signer": "0x8D4C92F56Fc0052e4B6a8C64B8f4513eb117bB33",
    "userId": "59273070"
  }
}