{
  "manageEntity": {
    "action": "Update",
    "entityId": "259622137",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8e44dfdfc424e8fea848d00b28f9b09e6f16e8f142c2e5ed3345a354c0994184",
    "signature": "0x3352b0657561490958ac67d755f65f6438d2e7eb5e262a6d0baa7eba19e039783113292e6323596f9cde4b3dd70e69b131412cc8bdc93912a1c9fc207b33b67d1c",
    "signer": "0x0b358DfaEF60f8F19324fB90d97Fd1c1051A89D1",
    "userId": "259622137"
  }
}