{
  "manageEntity": {
    "action": "Update",
    "entityId": "954072419",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x072dac1620c75f039af6e50cd33cc0ed3adc437d68963c21b8ac73c766b26ce1",
    "signature": "0x198ff2416461ccc7bc04979bffe5bb91246f61d13d645e3561d7770507728f3c6abbd5575ef545e53879d705a502203396d50d13abf5fafc5a76521cf01cf50d1c",
    "signer": "0x2648F01Fe19B8B1A4536b147beE183028875bB73",
    "userId": "954072419"
  }
}