{
  "manageEntity": {
    "action": "Update",
    "entityId": "634852376",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbd037f542740508c03fbb5eea802da73b329807624511d85b0d4c72eca0cbe89",
    "signature": "0xb45485ea958b79cdddcd796b696f3043d72d0ee1f2670f43696bb218d428c8aa66684dc45a01cc1381d595441c366157b188d0d079bb85835bc8bb4d7d338db91b",
    "signer": "0xdf66eEfECb2C28Cd9206425cB401d2972059a45f",
    "userId": "634852376"
  }
}