{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0xf4a4e73fa183602b02c1dd5ebd5aaf8f0581a38060200a9379602712a12729a3",
    "signature": "0x747e3ee80f2b13ddc532c70c649a10939de31ad93f55649c5766325701c51f2f7f0932fa7ae87c403221d62df09738a572cf7a41e7f7c6d6421d6a93fa7403bd1b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}