{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0a785655e70cb4fbc76df050de2295c3a4449033015cddbfb96a43645dfc780",
    "signature": "0x4d2f70f34e475b66de9d0f77a1e00d70f3d2718d7863ca67e00c9b8584aa004e31e82f525a33b9480b7b9ee904b4e08cd1ff61c9f69e8792c1aeb8e46d8e55971c",
    "signer": "0x96e9FcB3bcf2B4B9B7347B5ba96A6a8813527DE8",
    "userId": "319177310"
  }
}