{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "167557",
    "entityType": "User",
    "nonce": "0xb797e1d4c3f1f938a5dfa7fbfc043907cffdffacd4b851f5533571bd477bdb39",
    "signature": "0x74d81049eddc56440c4a2ff6ea535fe7be8502ff0bbbc43fe4838240f9129aea04ae267950adf6ce9962a1a690d3f8550763b270ce7e5c60a52ade8f6e854b511c",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}