{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xebcbd71b97342c7fa133282052e8232dbb564bfecaa8728873237eca8e9ee969",
    "signature": "0x3bbc736ea350e1e057db8ecb1b543e1e05a8c6407b03a8134a776fb55af337394ee43fcdf81ab75b7b45416b44dd263e4a200bf9ece9a5f6189f59b96024f3131c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}