{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9b8ed398f93ad6257c663b5c31a19b5e1b1a16a7f05f64acd3aafe957da27d6",
    "signature": "0xf29643c5c284d991fc62ef0da1101fd757a25e1ac296de48235713e5c3dd902e7526733048a8da52d1645296766687818fbdc72a3fc977617faf8e72ee35b5be1c",
    "signer": "0x074bC8585a042ba8DD2e3536767cc9b84cb56114",
    "userId": "86990056"
  }
}