{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53144",
    "entityType": "User",
    "nonce": "0x8ef1cf0631aef0c834c9a469ee69f2a1d231c9d798b3661131c33836b60f5c0e",
    "signature": "0x2ae1953fe0de9d865b2060597ac4c63912653289bc666ff87e820aa0874494a31746ed2287b7faae40043d3556efa0f61c97e5a9fe46c279fed60e8fba0ed2a01c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}