{
  "manageEntity": {
    "action": "Update",
    "entityId": "297137728",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawmmtvwdysjgc6x4r254xhtdv2j6pshmbiwwiw4koxh263vi2n4gq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":158844497},{\"type\":\"playlist\",\"playlist_id\":44548832}]}}}",
    "nonce": "0xf07d8e732f1d68f5ffc8bbf1c336d6c2031034d590b6b0125553141419aaa68c",
    "signature": "0x66e1eefc681f4ed67a1482d50b6fed23bb94e50949387fa30f35ba608dd0ba3f25c49807793c72aa5db8a12b45b8504f3f65d8310c602dae1240dad449de09271b",
    "signer": "0x001bE4DDDeCc90Fb4A0AA9Db92141E3ADc0A7698",
    "userId": "297137728"
  }
}