{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42472",
    "entityType": "User",
    "nonce": "0xb0436b1efd7f9deae101ed28b0f9f8a50fe082df1f323655465ed26ad379abdb",
    "signature": "0x9e08898f8c40f3785565c246a55d94995148231871ba6892dd6d100cbf94891558f90378d74016d1132848d09e549c34674553db316e730ce67893adf99bcd101b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}