{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x82d64bfce1084e5765e3af9582371fb971b2416cb87b36cc01939cb8d481e582",
    "signature": "0x8f1a18169c5bd4d7c66caed8eac99c6edcbc0f30c3c0be87466ccce11784b933624f239e9546d00b244e1867ed6eb7dc09b41ebaef65538bbbc936f6f6394d191c",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}