{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37892",
    "entityType": "User",
    "nonce": "0x49422a96feb4e1c80c03a542262b2bbd78f6ab7ee6c1e6762e2abe5d39fc0e8e",
    "signature": "0x5bea4534b5bd61db74cf09638e1cc828ddbd9ceaa4bedae029d875ab02fc342a70a43836b5d74045615b36a4e92e3b30fc4047d249fd6e991faf1a2a3d2e2a611c",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}