{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174216",
    "entityType": "User",
    "nonce": "0xa1a3f013e29b08e00b766c555ff42ca06991e13a0755f890a664fcaac23bde37",
    "signature": "0x05cefc7777ad8144bc99916bd6822dae5b74d935d4006c91ec0163ef896efad15f8dcbd7d9937426d95182fab0721024603591ba65299d9e420746fc9af0ff8a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}