{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcdec0b9e5327039766726078ba1741d907f83c432a536bd7b2f911032b6599d2",
    "signature": "0xef049f95292144ecd5d250553292750b0b9ff8765c183274a63c600dae7d535907a6cc7a8f36c46b740bba88be74fe2e3afeeb88817f8d0b4040cc6e8918a68f1c",
    "signer": "0x0262a280dCAddEFA15D5c2C708d82c53E18FAb00",
    "userId": "870594533"
  }
}