{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153734",
    "entityType": "User",
    "nonce": "0x0f20a97a9347c77a495305839b6c116b3573f81890964b3686a7dad2fa865312",
    "signature": "0x0a50e2be2150d2a5fd0f865de9eca1dcc81311bedbe445ffe3148f59598fab1f1baeccca0037cdfd1a745ecbba4fe0c1249a70e651ce77faebe961eb23cd6b241c",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}