{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0xf40dd950af4456f9a20f4503d9804fb61c49a1b8d90a4327058b70dfcfefbc19",
    "signature": "0xcd796e230d0dba6ab6ae97d32b91b415fd2c544173392f22006624e7b5b33f0b5604cad2ec8c5578ffe77ebb94bdb9975bf524bf9b5629e77ebe1bd8df5641491c",
    "signer": "0x1B842e7C0df0BA58e4c077aafe80AF046ABB1103",
    "userId": "959246287"
  }
}