{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb4ff28444796b7ca62b6c5fcf934fcdfb25e4dbeef695c72650b4347dc46a991",
    "signature": "0xeb4e685cf92ecd77bcc0dc27da93a13ab363cf552c97ae4ee82dc67d12ad0149274d6f15b49f540341f875286416fb183c98ceb6b5e8785f881344b5a2cf1c9e1c",
    "signer": "0x1E2C4aDe69BDE80BBC3cB44d8d289A059bcF1A7e",
    "userId": "428386240"
  }
}