{
  "manageEntity": {
    "action": "Update",
    "entityId": "837041148",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeb9c90dd737a87fada838b72b2ee5c4cf3ba26cceb02f0d1e2da05ca53fac559",
    "signature": "0x6a878127364bd5d7159f15855083f2eb548878b5b27c452a29a120194eababb108f6e2c282b05fc078556426a0e33a8ef5772609250c4a4ac28f6d9febbb06af1c",
    "signer": "0x62b0B90709A123AdE4b3809Edb0ee6dCF590BA5c",
    "userId": "837041148"
  }
}