{
  "manageEntity": {
    "action": "Update",
    "entityId": "294281809",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4fb64660e153ec71c1ea8fcff45525ee67b0626726183f3a38ea344b2c0065a0",
    "signature": "0xd708b7007a29df51433fa7266eb9234011c2f1f902f0535b687cdcc1e787b7f74c0891860983ede84eb1962703d7252eaa23a4231893e73ddf380baf1041d2f11c",
    "signer": "0x2d49E1dFdB888779419505A64C15Cda3477306cb",
    "userId": "294281809"
  }
}