{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0xd56a6a25568ff3f4d1f12acc996303c1905a734417c4f9559596a6eef4d284a8",
    "signature": "0x61442af12dbdeaeec27d377659e380ec8b0ff64be01fc52f9d5ee722e3685c532cb8af755c35022040187d28d1968f8ab4488d93621107f3b5be65595ffb1d5c1b",
    "signer": "0xE99B6771100D63894452ae6eE05837583c2de6d5",
    "userId": "883691386"
  }
}