{
  "manageEntity": {
    "action": "Update",
    "entityId": "602217700",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd1e19cac738ab9595bf04392eeafc2bb31a49ee007a047baaab82c0cdc98f8a6",
    "signature": "0x031bad433bc32b764da32235512a61a48ff1d3827d1f46fd050fa69f7e1cd28f4ab8c2766af3eb747900403e2d9bb05f8a594f13aa82d99c0e74ef39e5d9a2881c",
    "signer": "0x7094144C776594790B5E922D084562dB60549BD8",
    "userId": "602217700"
  }
}