{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf47ca98d909a6cea2d4533633fc3b35f80190c675aea822754a5dedd6494c084",
    "signature": "0x4a40cfe8f97ceae388f6c7210399e2cc725af6673c52e3ce21bfa27794070b5c3fc47d30bb344b638a062b4f257bf0491774ebfcd2bd476cc2d71df2ba1195591b",
    "signer": "0x244585f234719dE1e0Cb3A04b483c06605Adc90F",
    "userId": "25580603"
  }
}