{
  "manageEntity": {
    "action": "Update",
    "entityId": "563206404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraje5g4gcqnkulgt5pf3wdwwtvl6wzih4pqagh35j6oiflhumjfihq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":30469}]}}}",
    "nonce": "0xb67cb20b423e6809fefa7971784cec78aede950765671561cee948378bd04cbc",
    "signature": "0x3bd10a095b561a8217049ec4e25d19ebd7c05b69730e8fac34fa5f6ddb65f1a91efa08bf3184ddc0f47e0a521014b93f62067c3b8596840cbf7392f9fb12d4131c",
    "signer": "0x94c0e5353541e2Ed4E6Ec11dBFd87F876D539A8f",
    "userId": "563206404"
  }
}