{
  "manageEntity": {
    "action": "Update",
    "entityId": "334589832",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1d5e52473697797e86bda529b1998b0fc125147e1a71bcdb5f1d0be2ee238b9",
    "signature": "0x8ccdace8181304e1beed828dc123c5913e0662cfdf8fe1fd6fbb03257eac01766ba9add0392cd974bb99e4ef7f33f0fce18cfabf732f2540c091a415252a838c1c",
    "signer": "0xF28339aFd76ee0f087e9C7B98e09086558b2a165",
    "userId": "334589832"
  }
}