{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xdd32b361044f33e278f25087983f2992ae17de04cf3ecf6dcf7cc296fe8bb6a5",
    "signature": "0xff707ac39db889c323d1a94e9c8ce48d9d621165658cc977fa46a51e1b56551425ad05f8eccb80a68afb033b9dede856c9d630227af93752813ae838219aa0d01c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}