{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102143",
    "entityType": "User",
    "nonce": "0x8ca3df0dd810c6702b772427b5fa856c8d5d4dbd70f6dbb890c190665b8b2336",
    "signature": "0x9636e8d4dcf8fcd2941bd595d16ab8123b36ded4921fe09305c6ff0ae153295b20e20e7a0cbfd2b2b91fd5112d240f5336873cfe922783834509af2874a90c531b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}