{
  "manageEntity": {
    "action": "Update",
    "entityId": "158682363",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x14364ccbd6bad73e1fcaa0a33cbaadca68291edd6117d704aba661d87247b509",
    "signature": "0x186b14b6d5199692720c84f4f334e8f4a8cbe5de0fb316179c3bfb19df8a884c38d0dd0c8c663c8eea3a3adb48ba8198aa63377e554e3434af77e235f8c801ee1c",
    "signer": "0x457d893FaB04AC93bA18E9eF790e77eE4b0fdF15",
    "userId": "158682363"
  }
}