{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb84cf275be995ad17924c9769a69c343c0171b45de4b534f18a82178f6ab8dff",
    "signature": "0x608b773e22478ab33cbb8896435b9be8c12d82907470bdeb00e6d4b7b1d50ffe464d31a14d549e1a954bcbd5c7a20983b8674f8e2ef02c0c77bee6b3915580711c",
    "signer": "0x356Ce5FbC134DfCC22701a177221069dB72F8adA",
    "userId": "326723341"
  }
}