{
  "manageEntity": {
    "action": "Update",
    "entityId": "273714734",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x67f162f18fec4b7d15aae3754f869256ef62969e51f349e65e2623b758231085",
    "signature": "0x5cda52398d0b5726bbfb5a598229e8d06e730c2d54517be7c47bbcfb15187a252a8a42c980c010bdcf29db5f3580927bac0ae2db8dc3e6609056f0affb4166e61b",
    "signer": "0xe91cA531AA10dbf5AeADf43B2e689863919e550E",
    "userId": "273714734"
  }
}