{
  "manageEntity": {
    "action": "Update",
    "entityId": "817964210",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3f97f0d77248fa250c3809bdc96a02bf195cc74ccee46e985cf7c47fe4aac3be",
    "signature": "0x1d49393fea11611ce12dc868a167baaf81ec4d4069ffb5be9853417a3f15db5a2d089ddf432a86b442f29418a9f4ce3b9279239c9997f6e40c66249e1c6523811c",
    "signer": "0x095a68b9D98ac351Fb872C4290e156751C9D7CCE",
    "userId": "817964210"
  }
}