{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x36650d84d806a6866475b5d16c3ea12a8cbece4f475e5ded171d320dd2ea9726",
    "signature": "0x1cce2e4e48a4e9d450a983a1338caaa9e95e26767db66eac2e163d429995f9fa2d5590f4660098bd35554b8f825e086d1770b284fb1663192f302e96c01d135e1b",
    "signer": "0x5D040c7e172B07431383B4bd6Fdd84ed67B8Ba0f",
    "userId": "508547804"
  }
}