{
  "manageEntity": {
    "action": "Update",
    "entityId": "512805022",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6c2cf3be671ca780c99c9289885ed98d47c7007418fe0dd9d94dea032d3a249f",
    "signature": "0x98532e1e204a29a4509b9c7e510c7c69dc394354ae89f38c76ecf2c2421430c67b9b80cc816dca8c1a8e0e2ed9d87ea90816ff2633d595d2985bf6558212e3481c",
    "signer": "0x10A3e44Ab698cE363fF403330DB4d3f136A7fF0d",
    "userId": "512805022"
  }
}