{
  "manageEntity": {
    "action": "Update",
    "entityId": "954784626",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe0d0373b8d3b7efb04fce9af04c07574f50cbd4281808b4edf5e32eb56b712a2",
    "signature": "0xf32e796cb153b81933443bfaa4fa1c892bed325412d9fe67300f105902c570836b300ca57f3b411fb3fca95c0c6b50d5e4662b4bd3a687ce45a4351b5fbe03b81b",
    "signer": "0x21598D137E78d9Ef3073bfE80E71B8d5DD794B3D",
    "userId": "954784626"
  }
}