{
  "manageEntity": {
    "action": "Update",
    "entityId": "481331278",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaa29a478e3011a3b3ab231648b52f2ead96e6d9ffbfc54bf0f38e1477b60fd6e",
    "signature": "0xa7a7c8b0456f97b2d410c6481d54c5bed98c9faf542915327a1294ba02edacc253c726ac39145fa2b4e4b68201885465b8d8732e5fe860149c8792db17062d021c",
    "signer": "0xd102d4cEc0c17a019c428345434F0763caE1Bc60",
    "userId": "481331278"
  }
}