{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63299",
    "entityType": "User",
    "nonce": "0x456f6a22467adaa58f0a515918a4568e149eb97d98a288ac0950011b1f3f14c1",
    "signature": "0x2c4dd7083f0a233b09e09be5b520d731592db8257443eacc6eaa9a158ac378640eeb854bbd27abff5d96b2f48f944b52a92973c661fa565b0f5b017f2da631961b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}