{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xd77bd3180d3c1301e3abaf1ecdbfa8642c1428b1bd6fd32652aeec346fe07a76",
    "signature": "0x5e0c5f0e6ece2e154a133442fd533f0fb9aa0c965cb9ce8d6e8b2bb2880e502105ddf8b86c181a31afae8eb88c58c6cc4f3195823d97476674e92c7bb2c287c51c",
    "signer": "0xf96057D7c5a737443d6216D67a29B7c2fd8EE11C",
    "userId": "21156469"
  }
}