{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0x13ad8fe008941435ccae21433ac19a46a7003d37aaa492de5d6addc4fd1aa69d",
    "signature": "0x75fbaef0836d6a5336ba404465fe361a659d13323826e4c8db1e540cbfb3709f24e187e626697e95315465182dc2661d54fb69a730111217f4067c6a8aa466941b",
    "signer": "0xFF59cE18b2b9EDFbE1F524392Faa3288d9937758",
    "userId": "971034959"
  }
}