{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf1455769e0d39b14a8ba99026299de227b73875c14374ad16972b98814d6d0a",
    "signature": "0x9220e32965b52cdc9edc9b050c1ec2f35f143a1dd8223aeb81b47ae964d402b559698b369a43cbdfdbc4a0f545421a8c4ed39800ec42cd47487b032fe8cd2f8c1c",
    "signer": "0x568a7935FabeeA80010b46452664f33aEBbd9445",
    "userId": "434424980"
  }
}