{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709633854",
    "entityType": "User",
    "nonce": "0xaea2fff9c995a4bfea01e1b7814e9671cb0ec887e59de14a44a8630c6c6d451b",
    "signature": "0xa95532803a91ca2544a4ca10bd3b78a0c9bc1f7078c801e3fa31af5a1e55502c6cd6681daeee547aeeb56b3afb6052399e0255449356e49012477ddc2cb097ef1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}