{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x209e7f96ccf74a49b141844ae6482d6b70427ce8d17449d14768d7f278264502",
    "signature": "0xc80099ff18395ccb1165816ff999d518eaf859588655c897a19cb29349c97430650041a1769a467d199f17e793c3b366d7665bcc232b428fd8a309bb46fe1e7d1c",
    "signer": "0x9309d7e48f46fbac605153ee4a20E4561DA646eF",
    "userId": "808965742"
  }
}