{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x87285c2346c6f1a9a7149be74bd18cc1d1408b7c585a3557f0a42c95aff79b1d",
    "signature": "0x289a4d2ce21fabc9f0cc733dad6c7f2e286ef40bf9a5342d7b8fcc1c53e0588336ded89b34a3b67e5168d9afbe0d2912ce9d022b1f20306e7a32a425985bad6f1b",
    "signer": "0x3067d241baB7e3FE988f593d54881a5AfceD63A2",
    "userId": "382101985"
  }
}