{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78148",
    "entityType": "User",
    "nonce": "0x6c5d7f0c3df04ea0a519406ce5951a15f50fc98a41e4b8f96c6fadcf2af28730",
    "signature": "0xeed2e5f4db612d8ea1a16e1916622a19163e798ce7139024b8fe9f681e8010036a2492bf9c3fedc9dad3e0a713aedfb2565ac5a6f755a5dda67d4de9e09e1fc41c",
    "signer": "0xaaa210BdF97c681107cE56847557Fe8137107B08",
    "userId": "560013778"
  }
}