{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67558",
    "entityType": "User",
    "nonce": "0x9ad9689f84db2b34fb025fa4ec476a74bd6dc1a0682ca32aa47f04debfdccb7c",
    "signature": "0x2cf612253fd37dbb21c67d0e385d3a529eb91861314e4411bec1bccb03750ae44b5524b0ae7cc7638b5d1ea96df11d2cfb8540688deb08d9fe30cf34a06f40001b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}