{
  "manageEntity": {
    "action": "Update",
    "entityId": "10606782",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x72504e303f4ff2bd0270f0834e7a402582590b528359e0a1dea7c5243ef89e08",
    "signature": "0xe5145aab76ba514aac65d5e72314270002987dbec72e46892b6619d936c61fc87cd17550243be72f551a2938835c9e79092f5e821093f27a97ddedfacaaecffe1c",
    "signer": "0xA181eeE49e401F522eC7cD04a059DA3d12720bd4",
    "userId": "10606782"
  }
}