{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x4cd1fc5ea75de10dd25c54853a2c21099d03400821ff10fe1274daa11922105f",
    "signature": "0x83fc2521650dd47ded8f0905404530d633ea0177783c78cf930bd3a74c250acc5313d1337876436d9c7b59745f6d8194bd8d3270229b71e70505030c2ba8d9891c",
    "signer": "0x50136bc73d708Fb19Aab7302A3b581BbD644CaE7",
    "userId": "776994971"
  }
}