{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x60ef754ce6d8dbd6539ffb1f8f88849ef14535242e9d3b9f5c597370be881f8d",
    "signature": "0xf822cdad540f8c4c3ccf1c83d5f8e1d6733bdce1bd0a978ea0851c58a4e68f3c3fabce674ad56384e0ff1ceca4e2a8fb7747de88c9e875fc5be4777b3f0045c71b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}