{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x246ef81b22e3abc457721b0e472160213cd685996dea686ac71cb58493001814",
    "signature": "0x2666dfe4547c4d804dbb74af2a7996d59697ca289abccac4ddad26d44102227f50b13a66b1caba755d354beed1aff2090b2a04e40f14f59b350c0b848e75abda1b",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}