{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xd5ea4654465aeeba3aedf1f0a318dee23ebc6215f8dd76a49765f59b01a623f6",
    "signature": "0x1f62e85b7be7bcbc64335838d432a4fcf800afa06e6bef64cd9d2cc1a6fba6d03f16650f82216b70cf503719f8beb3cd2fec2113eda8144bd51017033885777a1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}