{
  "manageEntity": {
    "action": "Update",
    "entityId": "350247820",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa127e0892f1d3ba864c16201a084ff409d2ab9a3a0c054d80a92295a96bbb273",
    "signature": "0x36172c6204607cba6bd34d090bf62b40979955308e2ec0839d56d9faa2dfb61d3481028a6257bb5d3c56ce1fa941ec2f5e257aa4b4edaefe255c96f5314e26bf1c",
    "signer": "0xA78079C79E7c8e90c6Fab500d2D57937e74dbA09",
    "userId": "350247820"
  }
}