{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "949537054",
    "entityType": "User",
    "nonce": "0x42fa612f4d0074460061bd93875d1dacb19fc918e2d5dd5f14d3bbf00d7c691c",
    "signature": "0x1b5fa8d83eb565a2e69710220da92ba666ff05b393633dbac350770c48f177004a4f140bc08134fa95231093da02445197fd905a0716d70239a8547ad02925691c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}