{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73216",
    "entityType": "User",
    "nonce": "0x2aabf7e88aa2a36245ea052f0a4e97c7d27bf4965c23a759b0ed2483da45c19f",
    "signature": "0x5013e0ce613b11e91ba8809b07b3f1dc599bd15781dfe9230ca07c05675935254485879b8a8edcc4afc49d7fae5728bcc826ecea4c991a7c9df933d85c001df41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}