{
  "manageEntity": {
    "action": "Update",
    "entityId": "716690198",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqdx7nstljwby6zj7nghtesdssyb54gk4rolimqqbz52gzp3lluoq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":854674184}]}}}",
    "nonce": "0x37eb8cfc0bf607576484710c7b5ced610618b0fe18e49ea15545be4c3fb18cd7",
    "signature": "0x5c39dbbb935daae8c469ee72fc86ff53f91dd4a9febf0072b457763999d42f861b54b1d2f1aae4777614ee134297fe571440466e5a02cf6eea2efeb12bd65bc61b",
    "signer": "0xE430FF2E18239138E4D7348C86b9056B4BFA0925",
    "userId": "716690198"
  }
}