{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53596",
    "entityType": "User",
    "nonce": "0x275179527ad99e6c77fe1eb68157ab045cef8377a90376f7f24fd051633bb4ce",
    "signature": "0xb330d940890de37d7a9f6d695ade132ab0dab3970e49e2702184b5a69f7184930454a5f67b458aeecadb1d9344e995b013ae838d80bbee94d424561f338f47991c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}