{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xd232ab4a2ab4debb1e0cba770d5690e80b415ac9f884ba0a1bd976c2b8d37c4a",
    "signature": "0x4b5e23735769b5e9b0ecbc961a29939b8bc2e99e8226a036122a1abca98b17647e2b389fa832f6d626bcb0b6387f9cb7349ff842f84d29deef74340493c3d0391b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}