{
  "manageEntity": {
    "action": "Update",
    "entityId": "37680899",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd3a2d2a8c63a07d6ac807fc23df7262bcf5f04d591e089f26c10fd142e0536ab",
    "signature": "0x517db2d010d0ba2afcba1b98af581330f64984c16d3e1873a92c91cfa6987bdb7cd1aa5a814860eeac69ae85144b91a925f53fa635b31080f5757a247b1509c41b",
    "signer": "0x0AEC7a038042C23C3A982DF1D9d7E076DbB4d420",
    "userId": "37680899"
  }
}