{
  "manageEntity": {
    "action": "Update",
    "entityId": "875856435",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c11c12d627206ac50b61f0e6ef105d6ca3c685b1b308a4568bf339cddfe759b",
    "signature": "0xb8f0fbe4c0668d973ea6074289ce0a64ab22d867d5604c8dc5ac5f8ca543808b116465a625ce04b176a322241180ed95bda5732cb693bb2d1a1f875078e8dc791c",
    "signer": "0x7662cb86A5Ab2f46DF58d87368873d0f07FbC1Ca",
    "userId": "875856435"
  }
}