{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x227d65a23791ff33df7949c95df1f4a8cd9bd70201cffab4e141ddc35e2b926a",
    "signature": "0x30d9947021cd0fadf902476e0258fe274d30c553aa508921c9465d68033642c931819d9a0ba6daf5275320f9aebb459550f146bc37e40b0b36fe73cba7d801ae1c",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}