{
  "manageEntity": {
    "action": "Update",
    "entityId": "99359499",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd0170791541dcda70fd1fecb5b1a70e125956a4a78a71c0456324120b52dbdeb",
    "signature": "0x947c061db9d6bdfd7b2fb294ec819996e729f496ae4a64b9705337e1793c4bed771e131c8dda94ab060a456faf4aa4fcceb720d62b7f4c703741d355385442b91c",
    "signer": "0xe7c3A8b57D5E123621e7EC38D44ff443b172E8Bc",
    "userId": "99359499"
  }
}