{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107573",
    "entityType": "User",
    "nonce": "0xa05e3bbc9a8dda838d37a80f42e931782afc1a1664133995bf82cabb96eaa502",
    "signature": "0x4a5a69a1e2341582c595b60b26e67eb303a590f7a4a0ae155b6379316f4ad76e46c3fc1dd6bd9b9f7d935723aa854e251b12a8b654e5349d331cb8e4cea332a31b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}