{
  "manageEntity": {
    "action": "Update",
    "entityId": "957000638",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa68329158a574932a3152ba9430831c6f1d10824a239096a9d8f0b693bfe0f14",
    "signature": "0x9e98412033f887314299861f5e49807b6c04477b508b1d59a54c078f7414a13375539cd729b4ed77e59023a2d393317638e04d3169ca2b937e7270c4d61fab411b",
    "signer": "0x094AA17013B3eA1cf264A62D2424982Ce42cdff6",
    "userId": "957000638"
  }
}