{
  "manageEntity": {
    "action": "Update",
    "entityId": "215864112",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3fb02c962ca5e7b7d0716d411a2d844e0436d1c74ad8bb0eac5259eb4f81c16c",
    "signature": "0xcf58cddf8a1e801d0cd8d143bb7a791f81a4cd24a6504d91b791ce52be280151198b10ca4f85c3ee6a17fbd8f6ede5552ad29a1858da441a54803d140d22cee31c",
    "signer": "0x711e11faeecd23566057418403c87a93195b4F08",
    "userId": "215864112"
  }
}