{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2f8b8f6c5f1e957674cc5e6bca8144123df209b00fbd02bc26ac5ff0acdd87b",
    "signature": "0xf1c548f797e1ccf858341844154a732af7adf4772a3a525eadbdc81534f3fb4531aed9290a27a6c50f675d9a90b06d7aa4baf306c338ec3b6af908aae13e0c031c",
    "signer": "0xA0dc7ad77A4089ce2Eb8dB77ebe7784B7c4C7E04",
    "userId": "441831643"
  }
}