{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xce56e38248007fa6a244c00509133787ff27c0307b60b8af119158aa57e5ba6d",
    "signature": "0xa5afc1626f8a8888de894df87734afd12bf79d3986715b57e5a3e8ea21ca2b1b5882ea3b31b71196afd21dd897bbb8f1da6bcecf65667615d9de0f3670cc943a1b",
    "signer": "0x920421Fd77D20d7FcAFc7034878a08C9a16f413E",
    "userId": "132571128"
  }
}