{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "474113241",
    "entityType": "User",
    "nonce": "0x4fd9c67e52c65c2e0bc3778a4c53638c9cdbdb2a133714732abd962006c529d9",
    "signature": "0x0f8920b7af5c417037bb1239e72d2840114a37b3524cff1d70eeb20826dd20905d31834b7dca2efa953277ec8050a98833d25ee65cf6036a2bdd4ce8bb4298c61c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}