{
  "manageEntity": {
    "action": "Update",
    "entityId": "147459552",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd5b938cfc927d5e5058dc58e0155a7a07498648f1e46d86e2bbbb2577e59df54",
    "signature": "0x14b3e2b8d50edbe25d19d76e771e34fd1a42644e2a716ec3c58b558566e082466a1fcb5ee95993bb98c61b4f699170180550c6b83970716859379bffe80dbbdf1b",
    "signer": "0x984EC72589412a392cB3451eacc39b4c21aeB19F",
    "userId": "147459552"
  }
}