{
  "manageEntity": {
    "action": "Update",
    "entityId": "852373234",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x008dcb98563a5de8ff7fb194cd6596b6c705ea1431fe7cef1bfc8b1d96917100",
    "signature": "0x63197301221e8b1cf54596d5ec62805081b2f973d34acd3f35a65bdceda0781676319ce3e2658d4ba0d4b78d5e018533d4f1e0e8dce15b7bd48a8a5f1ba6fd5c1c",
    "signer": "0x4261723Ad2A78F3d78602385a2D62B4Fa88d3Eaf",
    "userId": "852373234"
  }
}