{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf40b55cfc551962586e47641bcc409c398b08a94325203bfc445abf3f1313c8a",
    "signature": "0x7ca032f3a54ddaf26acf8d231f083c5864900ee64e2ee8abbe46a5e1c011abc53d9f829ea849a43cb11acd8801fdbb5f6d220c9040761f1da814c0e6d53397a91b",
    "signer": "0xc0c1260d36BEf5a3e16B1e404a9a4C201aFb01CB",
    "userId": "972138429"
  }
}