{
  "manageEntity": {
    "action": "Update",
    "entityId": "418312750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd17b4a1ba4fc08de0674ee754f3e923ea98665b3b3f56c68f6f6ce006b4e3d1b",
    "signature": "0xec0857ef42a98aef968880497cf525da58677c4e7da31e73add90f3f35a28e676ffd43ace996ee2a193eca3e6d29396ded9ab2f109db944f0bff61005afce3941b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}