{
  "manageEntity": {
    "action": "Update",
    "entityId": "588125677",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa03b3fdc8894414d408d7c06ba945361b19bdd2e1b1a26b51e1bd7c847854697",
    "signature": "0x47cf6cac0d4a45d025c0a1c5d3e12af2bf3a08969fce4801efad21404f7cae7f7d40c18b39bf208f665fb78de6cb65a0f2980a18e0d0570b83de225a3f1825cb1b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}