{
  "manageEntity": {
    "action": "Update",
    "entityId": "636222349",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraul2h2k366jy7ppnywi2zvvpzpsghtbefszdj7sg4iw6x5yxhfmhq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":430254547}]}}}",
    "nonce": "0xb708f46698e10a6a0f95027d010e6a0b9948f8527231423b9ca98050a6366618",
    "signature": "0x09c1c1ec391753b48945fdab5662047b4d48ef7148d09926166a4f8ccc9e0b66313858157ec42756ff2334b09f223c98e1163a6b6fa17c954f718ed7484be9cd1c",
    "signer": "0xE775277fd7056ae9833fcba300f28A8d4A7672cB",
    "userId": "636222349"
  }
}