{
  "manageEntity": {
    "action": "Update",
    "entityId": "334235250",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x737c14ebcbcbdaf11722f55018803f92fc3982ce788efb2a3068ef61a583971c",
    "signature": "0xe9d662a70438fede2b3959c0408e65ed6b9c0e4db7be9484d951a5619eccd4524e254a223cc078713380dd157fa1f9528e5334fd669c17ab7bb070e378701da91b",
    "signer": "0x98daE37c16C2d825f19272D227D509C135640a90",
    "userId": "334235250"
  }
}