{
  "manageEntity": {
    "action": "Update",
    "entityId": "179469744",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieravxanphnaoxumqqutqi6vqfvhxzpf2hfdlucjlcbmwiolusr7oh6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":149256165}]}}}",
    "nonce": "0xc58630f0fd7f808fbe36e1038c7c30949e5a86e1759178527ebb950e7a866546",
    "signature": "0xf5f3a5a323c4a11cc5a0c68738fc2c306e63a9b4a874ce7e7578a9caabf1250c5819a8950ba88aada5f6d5a029e22ec0edc9d01ee8c18f80a002325429e3cb931b",
    "signer": "0xd14A5CCF48f7bcDef7c2224fc03111185A2aa6B0",
    "userId": "179469744"
  }
}