{
  "manageEntity": {
    "action": "Update",
    "entityId": "890925583",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5xjiwlculf54dy5bmou7adkkq6fuky35arpwamt4w6mcff4daccq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1072977885},{\"type\":\"playlist\",\"playlist_id\":609526352}]}}}",
    "nonce": "0x0e7ee7ed7afe98ba1c302f360695db90a92f81427b2d000858f65967c34980dc",
    "signature": "0xf3f4e48af9c3aa5d4802e76319c69531b361b0de7c240d777ddbf008d594075c1ab5fb133e4b757b75c9d17a4e31039674bfdd6badc6609e58e4f3da85a903661c",
    "signer": "0x8d9b589dE1945cCd95F387a72F34E3D1dEe0A497",
    "userId": "890925583"
  }
}