{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "859365301",
    "entityType": "User",
    "nonce": "0x88db80b9b9c5b69e8f7af0a03beaff1833cf7e3270264de73c0f8c98b2b463e3",
    "signature": "0x07fd4e297410b094de2921a89b67556a3464617ef388b7ca791c56a57e5ea827149ea2439769cce0e0a5f4646dfa226be03d0927413c128f3801c768c4a613331c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}