{
  "manageEntity": {
    "action": "Update",
    "entityId": "582968222",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3a2cbb9f9ad773434d0d95330fd9f9723d912c5ed6db7fc4f2119d305fab5741",
    "signature": "0xd14c0cb25250ad83c65df52fff39b0ef95444e543855187a3ca94cea4cd179a02ffac27dfe1b34ce042b6641abbab6cc8e8c3027a584ac89bd7de78f5f35239a1c",
    "signer": "0x65c85412e96F9349649Ce71a3241C28C9A02c37d",
    "userId": "582968222"
  }
}