{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xd775364e78473cc3ccd68bd8deb67bc30084eb019a988455ae410db2671bc967",
    "signature": "0x2bc211b729fe4aa8b9941cb9f8d7b109406a8d3e768110553cb2e16c49be1b97601526094e08bb6c3955d9d12d833f2c7bb2fadb4eba29296bf6af2dea3f54bc1c",
    "signer": "0x3887Ba427ff35Faa1f4a6feA693a23E3A368B71d",
    "userId": "74862939"
  }
}