{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64866",
    "entityType": "User",
    "nonce": "0x46ce3de86d5c6c0f9df791a4e71367d5ef5e107022fa08255c357d159f1996bc",
    "signature": "0xac1f3f6835124dc9f76dacd07415dbe3aa16c2794d7a817389470717ae6a18f61f21d2aef0a30cb9d996681843f504fbcfb8b7e65f40bfb7cbffacb5936851831b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}