{
  "manageEntity": {
    "action": "Update",
    "entityId": "486514977",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x41f44f437e7baa40cf05843af75848ed851f2642318260826a51281f1dc5adae",
    "signature": "0x7e3d49fc5321ab5e78254c8736112b13f7ddbda38c181645b0bdbd61dd8441fd5d901e783f40142da5660208ce2c7abd595a3dc5d9d325054467e46df2fffe591c",
    "signer": "0xD31a71519F64F733530a3193d921FBebe3aa01A2",
    "userId": "486514977"
  }
}