{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151571",
    "entityType": "User",
    "nonce": "0x654d21c70af11d38fa5732e98c4c60748a5b09ac28767b54baf3fa8ea729a360",
    "signature": "0xaeca526234a01f3d958d0467a95bbecbef3051c116137a50c8b22507c20e15ed76e1a70921100282fc9611464c074cd83da9240775d6bccefb4e5053490994e71b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}