{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaecb7340ea225c4d1d22483245c51007356f0231b8347770a5c02dd31c4b512a",
    "signature": "0xbf2b8b2a15bfe129c3b331a63f41c9c04fb6dc99ac83c1124535a287d69436d61191294a8f09cdfc1336ef8590ff54c4c9962ddf725f9a772da711a158ff86601b",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}