{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7b6f48c4c948f2e2ac5ed678938def13b320145deab91290194edaf2c01426d9",
    "signature": "0xaa79725106297b489bcd4edc0ac55b790754aef25c372f7dbd5c4baf6a0569486e68d7378d5c237154ebab0e0f7ac7c16e3ceec16b5b81d653e4e7acad160f2d1b",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}