{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6891",
    "entityType": "User",
    "nonce": "0xf7b1881d752fe07c23fa70e4285509c4e120b146dd2b2177074d8411f61c70df",
    "signature": "0x8f326371529a8a812459b58889e3105c3863b3207f551ba94b11c28108dddff762c38df6813c71b5e2e76a5875c0663d858929971e667b108be27bb7255643fd1b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}