{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243560501",
    "entityType": "User",
    "nonce": "0x311a1878f076c4eed0bb56b49e304ffce07336ebeda8a9f4be7bdc178249c21e",
    "signature": "0x108686a008f5eaf717da273a1856836728a26b6358aeb16a2a7a65749eaf47ba0c2a96191e993bbd593a010f99b8a8c0fbaedce3471547878b22795473221ac41b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}