{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x609ae9abfb53e07ae16051fe7271712052a4c612c9214ab799960c22a9cbe798",
    "signature": "0x21da72ee2ab4d9ce7112df6a620a8ba31010285fa4a163f9ff522c61c89bf3de34b68621d4ee13887b4f74b555ab354f0a91c9f9e0a8480cd89b395964396cba1c",
    "signer": "0x6c633CD9B83bb095AF6F4fbd3085e5758746A846",
    "userId": "77176962"
  }
}