{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "864923554",
    "entityType": "User",
    "nonce": "0xda3898afc4eac717dc3983bf9508f6d31aea2d43adca8f02ffddaeff7c55e686",
    "signature": "0xc525e0c67bab526c64b8153d6d1ebeaf65976fb480dbb29d26ee5d40ab41f3d16424b4de7acd4084400c00d7a2fd8e34609823a59b606ffb083a79382283717a1b",
    "signer": "0x75387BeED3d3B040a54C3e303fF0B07Da67a9186",
    "userId": "223536026"
  }
}