{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2a0daa0730b71734c042501f925054080fdd7d8629a7d46b8f14da359afd2450",
    "signature": "0xa7a5acd70e3ad3d88bdb2c55f3fdb8089a2037812ddc87048293ad1b6f6f072c7eb26944a7a336832122552b1a4eb1ee92fb425e90be677e67bf50b96bacafdf1b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}