{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220441",
    "entityType": "User",
    "nonce": "0x5efd7758e9deb82a9d584c397b356208608748cf4a1036f412c12c166887dc6a",
    "signature": "0x7239e87fae4323d3da7017bb1cfd251e9c430edadf60db66d5347e2aefd83966705324ed732f2ff020a7501f42df850c14130ca3def77ea8075333323fc6ab6b1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}