{
  "manageEntity": {
    "action": "Update",
    "entityId": "294359809",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb2fb38667f309078f32fd5918252f572933e79daf35fbd6cd85fc0a8456575cc",
    "signature": "0xfe6d24a7cd717acd984d1d33aa9645b2488809c3e49b69b00d7b1cfabea5ad0b5088aad1b5eb7af5d4e6aaf2f5c4b71281316a5f5d4adb77890292f61867b53c1c",
    "signer": "0x776FC9416d3338b25E1cbC297e10B7d871211673",
    "userId": "294359809"
  }
}