{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1715918",
    "entityType": "User",
    "nonce": "0x67c7078efd9def138e0e1e2984a5e4eb55bc670a2553b57b0dee950ae1919d71",
    "signature": "0x8ce8a3618a7cdecfb489d52d5ac8ec292f901a64962dd6997952444b0d9ae2f73d0f60f4616f4cd122a6b401245a5f6cb4b26fd7a3764c5daad83ae676d5208a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}