{
  "manageEntity": {
    "action": "Update",
    "entityId": "696978255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe2c3e965584c9ad55fbcc0a1b63d5fd6f2981a868d68c4351855dd96c71b2573",
    "signature": "0x37b4a8392fc5b1d596cd20fd70200fbaf02f7f915d3cf99a50b3844bf5b6349f5d0e23173e1b03b6faa0ed6d9fc429cde04634d43478e3c9aa2df0cf3d7ace3f1c",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}