{
  "manageEntity": {
    "action": "Update",
    "entityId": "505271212",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcee03831368f8132f482a471e5812ea00db34b0ec48b3f3add295aaafce4542c",
    "signature": "0xce92e0487ad1219715c7d228540d675f38e48c4840d4931ee44eae1c685b2463487290d3af37f3734e028c0135803cd77bac452965b1561c00beef0d96cd1bd61c",
    "signer": "0x90336978123880996d16F1b2ECF206DFf96D3e72",
    "userId": "505271212"
  }
}