{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "572163542",
    "entityType": "User",
    "nonce": "0x5a86bbaf1d8f932fbac458a048eac82519d1a78d9190e6a64ab4b7e073ab00d6",
    "signature": "0x7605d119b0044b2700bc3cf3aa3b026c8e008ed3cd9d8929917fbffe13ea9fc22fb9d95bc3f45e947e4493b1bdd2eccf1baf9c848c4eecf9bc72cdb9275d17991c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}