{
  "manageEntity": {
    "action": "Update",
    "entityId": "109444462",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x520d22345a10b9480d6be55f4cf4cff07ea43e068a4f1ff7ebaf9fa1e3a39702",
    "signature": "0xa8da5d16acaf49b3e0ee26e5cf7074c5cd9a5b66209e79fc14386072342fcc1e0f6d87398486e6871bbe1585126ca7aea12170be29fe281e43e0ac6fd59e4c2e1b",
    "signer": "0xCeb748bFCd7bA72fF96E9DBa8A6749798F934147",
    "userId": "109444462"
  }
}