{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157506",
    "entityType": "User",
    "nonce": "0x350a4aefdae2e497ba6888483bea3d04bed4cf0eaf693eb0b8c3bd1c3620a038",
    "signature": "0xdf6c483988e1a6879fa935afc31bde29773f713996be918bb4a7e7eb7da957d24fccabd9a1a449680e13652c9b52a5f96809d63e756ccfbed1a2f688e675977a1b",
    "signer": "0xD23c96a130623326f2d6348fF466F611CC78067A",
    "userId": "607041972"
  }
}