{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329",
    "entityType": "User",
    "nonce": "0x5feacf56ddae70214acc84e4a782c3b7f4e75f449bad4de0f2b7338b838abf21",
    "signature": "0x65939fbcbfb4609954d8b680509d902bf07c2e2d318bed00acdd4236aa3b4f3f40b056e09d5a1d299583a7e20b9e3c747954b07e9ea95c1a0ce467ed536c98cf1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}