{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166217",
    "entityType": "User",
    "nonce": "0x5f04a5ac2e897886af8c8755fe9295142f3b5192562a8073eceabccf60181618",
    "signature": "0xa891c570d680b6284af031eed4b21f2d98a7cc7cf8e3e3cd3e7bb5f416307fc7458268aed76447d43bd566cc2386739880624068db8fa4374b92c6977d1291d41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}