{
  "manageEntity": {
    "action": "Update",
    "entityId": "809974329",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x47681a35dff7305262f55ca5f4c17289637d7f072235acec53690fce05161c23",
    "signature": "0x2801e6af272bd295531a8afc9dc366cf3612dd78b7bd2be9800c32b56cf71a0b2353e2cde0e437092ab4f9946b486d3989f5fa8b924377a2bad8e5d3903ec32e1b",
    "signer": "0x8a3bD1d883518b91e9D08C2285f62231D15cBac2",
    "userId": "809974329"
  }
}