{
  "manageEntity": {
    "action": "Update",
    "entityId": "428405094",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe725755c67882278fe689589a00682f15744c10cd9e7ab8b1ed39478c972b3aa",
    "signature": "0xc3255706c51a9a3a44266ddca44b41efff73348e1811755fe51526198363646818db4b2385a66b3e9556698b739b7b29584068b8783e8465189ff5f83b18249e1c",
    "signer": "0x5797b066E3818C2d16862430ec442E3CFf120bBf",
    "userId": "428405094"
  }
}