{
  "manageEntity": {
    "action": "Update",
    "entityId": "335057478",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x82386af0ba7d21168c66a65eee04eb8f927c38e33f683786759d4670905ffb7b",
    "signature": "0x67ed4c56154b3309594ecc5bbb4f322aa01adfe8596548fbbddd57ee4642ab7c0cd0e53d618b78d42115342bbe89f56a326b900cef46fba02047fc97ccd424f61b",
    "signer": "0x0e59dd54d291dD83fa0fb7a81602d56F42457796",
    "userId": "335057478"
  }
}