{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112390",
    "entityType": "User",
    "nonce": "0x89adda9342dc2f9f58d1be5ec86c8d5b5d33d3f56ed479a29215b8ed0675cdd9",
    "signature": "0x82575a508e0734baf4b03932fafd4ade1666a0451e793fa79ec977c6565a66905d76c7cb0e741d90ea73ca56c42390efb1f94cec0780eb159fd57e0c058e77171c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}