{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153250",
    "entityType": "User",
    "nonce": "0xceb3363b6c614f141a15cc244fe3ebb1f379b5241ea5f669ef557f26bc81dda6",
    "signature": "0x7c8595f60bd07bafe9e024088b3e898cc17d84589ebfce617ecf7b614d7ced153085b348ce34caacf2be932cad341c905c01b0ffee096e75805739af81e29d3b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}