{
  "manageEntity": {
    "action": "Update",
    "entityId": "971562205",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x31757bbc0f5be121a11008ccc36f5ce84198e6e1e78c022b8728d4c9a3eca184",
    "signature": "0xddc967b7971844d5730eff5255de021c6ded0605758aca8858384c38a3b462bf734ea5da81130614859aa3aac31ad314a4a1a007193e200da101ff3cf55ba22c1b",
    "signer": "0xd640e9665a97D18b7ec9266e82c55Cc25CAF55A5",
    "userId": "971562205"
  }
}