{
  "manageEntity": {
    "action": "Update",
    "entityId": "4637147",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x97c088e8c4e69fa2759b4111110622e8b3040d4f39b7b50718d17cda2e689250",
    "signature": "0xc6d361da8b213332cdad7f7d082ceb55554da4ff287a8515d8b27ec57ca2c32e5be70a3c1abe462a65e19f5aa2ffb581ff8af04e807a2b51533ac4dbb793faa41c",
    "signer": "0x0cb0863DDfC1bDc7474924E9DFD475fE67AEb990",
    "userId": "4637147"
  }
}