{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0x64c3f0f5ce5eed3a852a5a0fc59259836adec425dd48d714d1d0a065fe377ef3",
    "signature": "0x5377f8ff3f753b288c9a317463430e826e16195216510850cd41585c46636e481584e051014ae62ee9de7b02050bc13e343d0c322af58365930b770388b7f28e1b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}